# Service difficulty reports: N274AT, cancelled Apr 25, 2003 A list on [N274AT, cancelled Apr 25, 2003](https://openairdocs.org/deregistered/N274AT-2003-04-25.md). Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model. Newest first. - [SDR SIMA200201701](https://openairdocs.org/sdr/SIMA200201701.md): Support · corroded · Jan 15, 2002 · N274AT · Aerosp ATR72212 · Entrance Stairs > DURING CPCP 2 INSPECTION, PASSENGER ENTRY STAIR, TREAD SUPPORTS WERE FOUND CORRODED. THE TREAD SUPPORTS (P/N S5217640600001, S5217640620400) WERE REMOVED AND REPLACED IAW ATR72 SRM 51-21-42. THE AIRCRAFT WAS RETURNED TO SERVICE. (M) - [SDR SIMA200201702](https://openairdocs.org/sdr/SIMA200201702.md): Frame · corroded · Jan 15, 2002 · N274AT · Aerosp ATR72212 · Fuselage Main, Frame > DURING CPCP2 INSPECTION, FRAME 28D WAS FOUND TO BE CORRODED. THE FRAME WAS REMOVED AND REPLACED IAW ATR72 SRM 51-21-42. THE AIRCRAFT WAS RETURNED TO SERVICE. (M) - [SDR SIMA200130101](https://openairdocs.org/sdr/SIMA200130101.md): Light · inoperative · Oct 28, 2001 · N274AT · Aerosp ATR72212 · Emergency Lighting > MIA - FLT 5012 - CREW REPORTED THE EMERGENCY EXIT LIGHT IN THE PASSENGER DOOR TO BE INOPERATIVE. MAINTENANCE REMOVED AND REPLACED THE LIGHT ASSEMBLY IAW ATR MM. OPERATIONAL CHECK WAS GOOD AND AIRCRAFT WAS RETURNED TO SERVICE. (M) - [SDR SIMA200129005](https://openairdocs.org/sdr/SIMA200129005.md): Battery Pack · discharged · Oct 16, 2001 · N274AT · Aerosp ATR72212 · Emergency Lighting > MIA - FORWARD OVERHEAD EMERGENCY LIGHT WAS FOUND TO BE INOPERATIVE. REMOVED AND REPLACED BATTERY PACK/POWER SUPPLY IAW ATR72 AMM. OPERATIONAL CHECKED GOOD AND AIRCRAFT WAS RETURNED TO SERVICE. (M) - [SDR SIMA200114905](https://openairdocs.org/sdr/SIMA200114905.md): Light · malfunctioned · May 29, 2001 · N274AT · Aerosp ATR72212 · Emergency Lighting > MIA - FLT 5363 - CREW REPORTED THE EMERGENCY LIGHTS STAY ON WITH ENGINES RUNNING AND EMERGENCY LIGHT SWITCH IN THE ARM POSITION. MAINTENANCE RESET THE EMERGENCY LIGHT BREAKER AND OPS CHECK WAS GOOD. NO OTHER DEFECTS NOTED AND AIRCRAFT WAS RETURNED TO SERVICE - [SDR SIMA20011362](https://openairdocs.org/sdr/SIMA20011362.md): Latch · out of position · May 16, 2001 · N274AT · Aerosp ATR72212 · Landing Gear Retraction/Extension System > MIA - FLT 5339 - AFTER TAKEOFF, WHEN GEAR SELECTED TO THE UP POSITION AND RECEIVED AN UNLOCK LIGHT ON THE OVERHEAD PANEL. CREW RECYCLED GEAR HANDLE AND GOT THE SAME RESULTS. AIRCRAFT WAS RETURNED TO MIA AND LANDED WITH NO FURTHER INCIDENT. MAINTENANCE FOUND - [SDR 20010425AP014](https://openairdocs.org/sdr/20010425AP014.md): Floorbeam · misdrilled · Mar 10, 2001 · N274AT · Aerosp ATR72212 · Fuselage Main, Floor Beam > SAW - DURING CPCP-2 INSPECTION MAINTENANCE REPORTED FLOORBEAM 29 HAD ELONGATED HI-LOCK HOLES AT LEFT INBOARD SEAT TRACK ATTACH POINT AND FLOORBEAM 36 MISDRILLED AT LEFT FLIGHT ATTENDANT SEAT TRACK ATTAH POINT. MAINTENANCE REPAIRED BOTH FLOORBEAMS IAW SRM 53-0 - [SDR SIMA07812](https://openairdocs.org/sdr/SIMA07812.md): Floorbeam · damaged · Mar 10, 2001 · N274AT · Aerosp ATR72212 · Fuselage Main, Floor Beam > SAW - DURING CPCP-2 INSPECTION MAINTENANCE REPORTED FLOORBEAM 29 HAD ELONGATED HI-LOCK HOLES AT LEFT INBOARD SEAT TRACK ATTACH POINT AND FLOORBEAM 36 MISDRILLED AT LEFT FLIGHT ATTENDANT SEAT TRACK ATTAH POINT. MAINTENANCE REPAIRED BOTH FLOORBEAMS IAW SRM 53-0 - [SDR 20010425AP033](https://openairdocs.org/sdr/20010425AP033.md): Plate · corroded · Feb 28, 2001 · N274AT · Aerosp ATR72212 · Fuselage Miscellaneous Structure > SAW - DURING CPCP-4 INSPECTION MAINTENANCE REPORTED THE FORWARD CARGO DRAIN TRACK AND DRAIN TRACK SUPPORT PLATE BETWEEN FRAMES 13 AND 17 CORRODED. MAINTENANCE REMOVED AND REPLACED THE DRAIN TRACK AND PLATE IAW SRM 51-25-02. AIRCRAFT WAS RETURNED TO SERVICE. - [SDR SIMA0789](https://openairdocs.org/sdr/SIMA0789.md): Plate · corroded · Feb 28, 2001 · N274AT · Aerosp ATR72212 · Fuselage Miscellaneous Structure > SAW - DURING CPCP-4 INSPECTION MAINTENANCE REPORTED THE FORWARD CARGO DRAIN TRACK AND DRAIN TRACK SUPPORT PLATE BETWEEN FRAMES 13 AND 17 CORRODED. MAINTENANCE REMOVED AND REPLACED THE DRAIN TRACK AND PLATE IAW SRM 51-25-02. AIRCRAFT WAS RETURNED TO SERVICE. - [SDR 20010425AP010](https://openairdocs.org/sdr/20010425AP010.md): Access Panel · corroded · Feb 28, 2001 · N274AT · Aerosp ATR72212 · Wing, Plate/Skin > SAW - DURING CPCP-4 INSPECTION MAINTENANCE REPORTED THE UPPER LEFT WING FUEL CELL ACCESS PANEL 522CT AND 521DT CORRODED. MAINTENANCE REMOVED AND REPLACED BOTH PANELS IAW JIC 57-00-00-OAC-10000-017. REF SIMA07814. (M) - [SDR SIMA07814](https://openairdocs.org/sdr/SIMA07814.md): Access Panel · corroded · Feb 28, 2001 · N274AT · Aerosp ATR72212 · Wing, Plate/Skin > SAW - DURING CPCP-4 INSPECTION MAINTENANCE REPORTED THE UPPER LEFT WING FUEL CELL ACCESS PANEL 522CT AND 521DT CORRODED. MAINTENANCE REMOVED AND REPLACED BOTH PANELS IAW JIC 57-00-00-OAC-10000-017. (M) - [SDR SIMA07810](https://openairdocs.org/sdr/SIMA07810.md): Frame · corroded · Feb 27, 2001 · N274AT · Aerosp ATR72212 · Fuselage Main, Frame > SAW - DURING CPCP-2 INSPECTION MAINTENANCE REPORTED FRAME 38 CORRODED. MAINTENANCE REMOVED AND REPLACED THE LOWER SEGMENT OF FRAME 38 IAW SRM 51-25-02. AIRCRAFT WAS RETURNED TO SERVICE. (M) - [SDR 20010425AP030](https://openairdocs.org/sdr/20010425AP030.md): Seat Track · corroded · Feb 27, 2001 · N274AT · Aerosp ATR72212 · Fuselage, Seat/Cargo Attach Fittings > SAW - DURING CPCP-8 INSPECTION MAINTENANCE REPORTED THE LEFT FORWARD INBOARD, LEFT MIDDLE OUTBOARD, LEFT AFT OUTBOARD, LEFT AFT INBOARD, LEFT FLIGHT ATTENDANT, RIGHT FLIGHT ATTENDANT, RIGHT AFT INBOARD, RIGHT AFT OUTBOARD, AND RIGHT FORWARD INBOARD SEAT TRACKS - [SDR 20010425AP029](https://openairdocs.org/sdr/20010425AP029.md): Seat Track · corroded · Feb 27, 2001 · N274AT · Aerosp ATR72212 · Fuselage, Seat/Cargo Attach Fittings > SAW - DURING CPCP-8 INSPECTION MAINTENANCE REPORTED THE LEFT FORWARD INBOARD, LEFT MIDDLE OUTBOARD, LEFT AFT OUTBOARD, LEFT AFT INBOARD, LEFT FLIGHT ATTENDANT, RIGHT FLIGHT ATTENDANT, RIGHT AFT INBOARD, RIGHT AFT OUTBOARD, AND RIGHT FORWARD INBOARD SEAT TRACKS - [SDR 20010425AP028](https://openairdocs.org/sdr/20010425AP028.md): Seat Track · corroded · Feb 27, 2001 · N274AT · Aerosp ATR72212 · Fuselage, Seat/Cargo Attach Fittings > SAW - DURING CPCP-8 INSPECTION MAINTENANCE REPORTED THE LEFT FORWARD INBOARD, LEFT MIDDLE OUTBOARD, LEFT AFT OUTBOARD, LEFT AFT INBOARD, LEFT FLIGHT ATTENDANT, RIGHT FLIGHT ATTENDANT, RIGHT AFT INBOARD, RIGHT AFT OUTBOARD, AND RIGHT FORWARD INBOARD SEAT TRACKS - [SDR 20010425AP027](https://openairdocs.org/sdr/20010425AP027.md): Seat Track · corroded · Feb 27, 2001 · N274AT · Aerosp ATR72212 · Fuselage, Seat/Cargo Attach Fittings > SAW - DURING CPCP-8 INSPECTION MAINTENANCE REPORTED THE LEFT FORWARD INBOARD, LEFT MIDDLE OUTBOARD, LEFT AFT OUTBOARD, LEFT AFT INBOARD, LEFT FLIGHT ATTENDANT, RIGHT FLIGHT ATTENDANT, RIGHT AFT INBOARD, RIGHT AFT OUTBOARD, AND RIGHT FORWARD INBOARD SEAT TRACKS - [SDR 20010425AP026](https://openairdocs.org/sdr/20010425AP026.md): Seat Track · corroded · Feb 27, 2001 · N274AT · Aerosp ATR72212 · Fuselage, Seat/Cargo Attach Fittings > SAW - DURING CPCP-8 INSPECTION MAINTENANCE REPORTED THE LEFT FORWARD INBOARD, LEFT MIDDLE OUTBOARD, LEFT AFT OUTBOARD, LEFT AFT INBOARD, LEFT FLIGHT ATTENDANT, RIGHT FLIGHT ATTENDANT, RIGHT AFT INBOARD, RIGHT AFT OUTBOARD, AND RIGHT FORWARD INBOARD SEAT TRACKS - [SDR 20010425AP025](https://openairdocs.org/sdr/20010425AP025.md): Seat Track · corroded · Feb 27, 2001 · N274AT · Aerosp ATR72212 · Fuselage, Seat/Cargo Attach Fittings > SAW - DURING CPCP-8 INSPECTION MAINTENANCE REPORTED THE LEFT FORWARD INBOARD, LEFT MIDDLE OUTBOARD, LEFT AFT OUTBOARD, LEFT AFT INBOARD, LEFT FLIGHT ATTENDANT, RIGHT FLIGHT ATTENDANT, RIGHT AFT INBOARD, RIGHT AFT OUTBOARD, AND RIGHT FORWARD INBOARD SEAT TRACKS - [SDR 20010425AP024](https://openairdocs.org/sdr/20010425AP024.md): Seat Track · corroded · Feb 27, 2001 · N274AT · Aerosp ATR72212 · Fuselage, Seat/Cargo Attach Fittings > SAW - DURING CPCP-8 INSPECTION MAINTENANCE REPORTED THE LEFT FORWARD INBOARD, LEFT MIDDLE OUTBOARD, LEFT AFT OUTBOARD, LEFT AFT INBOARD, LEFT FLIGHT ATTENDANT, RIGHT FLIGHT ATTENDANT, RIGHT AFT INBOARD, RIGHT AFT OUTBOARD, AND RIGHT FORWARD INBOARD SEAT TRACKS - [SDR 20010425AP023](https://openairdocs.org/sdr/20010425AP023.md): Seat Track · corroded · Feb 27, 2001 · N274AT · Aerosp ATR72212 · Fuselage, Seat/Cargo Attach Fittings > SAW - DURING CPCP-8 INSPECTION MAINTENANCE REPORTED THE LEFT FORWARD INBOARD, LEFT MIDDLE OUTBOARD, LEFT AFT OUTBOARD, LEFT AFT INBOARD, LEFT FLIGHT ATTENDANT, RIGHT FLIGHT ATTENDANT, RIGHT AFT INBOARD, RIGHT AFT OUTBOARD, AND RIGHT FORWARD INBOARD SEAT TRACKS - [SDR SIMA07816](https://openairdocs.org/sdr/SIMA07816.md): Seat Track · corroded · Feb 27, 2001 · N274AT · Aerosp ATR72212 · Fuselage, Seat/Cargo Attach Fittings > SAW - DURING CPCP-8 INSPECTION MAINTENANCE REPORTED THE LEFT FORWARD INBOARD, LEFT MIDDLE OUTBOARD, LEFT AFT OUTBOARD, LEFT AFT INBOARD, LEFT FLIGHT ATTENDANT, RIGHT FLIGHT ATTENDANT, RIGHT AFT INBOARD, RIGHT AFT OUTBOARD, AND RIGHT FORWARD INBOARD SEAT TRACKS - [SDR 20010425AP016](https://openairdocs.org/sdr/20010425AP016.md): Floorbeam · corroded · Feb 27, 2001 · N274AT · Aerosp ATR72212 · Fuselage Main, Floor Beam > SAW - DURING CPCP-2 INSPECTION MAINTENANCE REPORTED FLOORBEAMS 36, 38 AND 39 CORRODED. MAINTENANCE REMOVED AND REPLACED THE FLOORBEAMS IAW SRM 51-25-01. AIRCRAFT WAS RETURNED TO SERVICE. REF SIMA07811 (M) - [SDR 20010425AP015](https://openairdocs.org/sdr/20010425AP015.md): Floorbeam · corroded · Feb 27, 2001 · N274AT · Aerosp ATR72212 · Fuselage Main, Floor Beam > SAW - DURING CPCP-2 INSPECTION MAINTENANCE REPORTED FLOORBEAMS 36, 38 AND 39 CORRODED. MAINTENANCE REMOVED AND REPLACED THE FLOORBEAMS IAW SRM 51-25-01. AIRCRAFT WAS RETURNED TO SERVICE. REF SIMA07811 (M) - [SDR SIMA07811](https://openairdocs.org/sdr/SIMA07811.md): Floorbeam · corroded · Feb 27, 2001 · N274AT · Aerosp ATR72212 · Fuselage Main, Floor Beam > SAW - DURING CPCP-2 INSPECTION MAINTENANCE REPORTED FLOORBEAMS 36, 38 AND 39 CORRODED. MAINTENANCE REMOVED AND REPLACED THE FLOORBEAMS IAW SRM 51-25-01. AIRCRAFT WAS RETURNED TO SERVICE. (M) - [SDR 20010425AP013](https://openairdocs.org/sdr/20010425AP013.md): Sill Drain · corroded · Feb 27, 2001 · N274AT · Aerosp ATR72212 · Fuselage Miscellaneous Structure > SAW - DURING CPCP-2 INSPECTION MAINTENANCE REPORTED THE LEFT INTERCOSTAL BETWEEN FRAMES 36 AND 38 CORRODED, THE LEFT FLOOR SUPPORT BETWEEN FRAMES 38 AND 39 CORRODED. THE RIGHT INTERCOSTAL BETWEEN FRAMES 36 AND 38 CORRODED, AND TEH SERVICE DOOR DRAIN TRACK BET - [SDR 20010425AP012](https://openairdocs.org/sdr/20010425AP012.md): Intercostal · corroded · Feb 27, 2001 · N274AT · Aerosp ATR72212 · Fuselage Miscellaneous Structure > SAW - DURING CPCP-2 INSPECTION MAINTENANCE REPORTED THE LEFT INTERCOSTAL BETWEEN FRAMES 36 AND 38 CORRODED, THE LEFT FLOOR SUPPORT BETWEEN FRAMES 38 AND 39 CORRODED. THE RIGHT INTERCOSTAL BETWEEN FRAMES 36 AND 38 CORRODED, AND TEH SERVICE DOOR DRAIN TRACK BET - [SDR 20010425AP011](https://openairdocs.org/sdr/20010425AP011.md): Floor Support · corroded · Feb 27, 2001 · N274AT · Aerosp ATR72212 · Fuselage Miscellaneous Structure > SAW - DURING CPCP-2 INSPECTION MAINTENANCE REPORTED THE LEFT INTERCOSTAL BETWEEN FRAMES 36 AND 38 CORRODED, THE LEFT FLOOR SUPPORT BETWEEN FRAMES 38 AND 39 CORRODED. THE RIGHT INTERCOSTAL BETWEEN FRAMES 36 AND 38 CORRODED, AND TEH SERVICE DOOR DRAIN TRACK BET - [SDR SIMA07813](https://openairdocs.org/sdr/SIMA07813.md): Intercostal · corroded · Feb 27, 2001 · N274AT · Aerosp ATR72212 · Fuselage Miscellaneous Structure > SAW - DURING CPCP-2 INSPECTION MAINTENANCE REPORTED THE LEFT INTERCOSTAL BETWEEN FRAMES 36 AND 38 CORRODED, THE LEFT FLOOR SUPPORT BETWEEN FRAMES 38 AND 39 CORRODED. THE RIGHT INTERCOSTAL BETWEEN FRAMES 36 AND 38 CORRODED, AND TEH SERVICE DOOR DRAIN TRACK BET - [SDR SIMA07815](https://openairdocs.org/sdr/SIMA07815.md): Pan · corroded · Feb 25, 2001 · N274AT · Aerosp ATR72212 · Passenger/Crew Doors > SAW - DURING CPCP-8 INSPECTION, MAINTENANCE REPORTED THE PAX DOOR LOWER PAN CORRODED AND DENTED IN TWO PLACES. MAINTENANCE REMOVED AND REPLACED THE LOWER PAN IAW SRM 52-11-00. AIRCRAFT WAS RETURNED TO SERVICE. (M) - [SDR SIMA2836](https://openairdocs.org/sdr/SIMA2836.md): Battery · inoperative · Oct 9, 2000 · N274AT · Aerosp ATR72212 · Emergency Lighting > DFW - FLT 3615 - EMERGENCY BATTERY FAULT LIGHT. REPLACED EMERGENCY BATTERY. OPS CHECK GOOD. (M) - [SDR SIMA1712](https://openairdocs.org/sdr/SIMA1712.md): Pitot Tube · blocked · Jun 19, 2000 · N274AT · Aerosp ATR72212 · Pitot/Static System > DFW - FLT 3645 - ABORTED TAKEOFF, DUE TO FIRST OFFICER AIRSPEED INDICATOR HAD NO INDICATION AND NO FLAG. ADU DISPLAYED DADC DATA INVALID. CLEANED BLOCKAGE FROM FIRST OFFICERS PITOT TUBE. FUNCTIONAL CHECK WAS SATISFACTORY IAW ATR MM 34-10-00 FUT AND AIRCRAFT - [SDR SIMA0011](https://openairdocs.org/sdr/SIMA0011.md): Power Supply · failed · Jan 1, 2000 · N274AT · Aerosp ATR72212 · Emergency Lighting > DFW - FLT 3697 - AFT PORTION OF EMERGENCY FLOOR TRACK LIGHTING REMAINS ON AT ALL TIMES. REMOVED AND REPLACED EMERGENCY POWER SUPPLY UNIT. OPS CHECK GOOD. (M) - [SDR SIMA993341](https://openairdocs.org/sdr/SIMA993341.md): Battery Pack · discharged · Nov 30, 1999 · N274AT · Aerosp ATR72212 · Emergency Lighting > DFW - FLT 3701 - ALTERNATING EMERGENCY FLOOR PROXIMITY LIGHTS, TWO EXIT LIGHTS AND EXIT SIGN ABOVE COCKPIT DOOR DO NOT ILLUMINATE. REMOVED AND REPLACED BATTERY PACK IN ONE EMERGENCY POWER SUPPLY. OPERATIONAL CHECK GOOD. AIRCRAFT RETURNED TO SERVICE. (M) - [SDR SIMA991841](https://openairdocs.org/sdr/SIMA991841.md): Engine · failed · Jul 3, 1999 · N274AT · Aerosp ATR72212 · Engine (Turbine/Turboprop) > CRP - FLT 3642 - AT AN ALTITUDE OF APPROXIMATELY 10,000 FEET, THE RIGHT ENGINE OIL PRESSURE BEGAN TO DROP FOLLOWED BY THE ASSOCIATED OIL PRESSURE CAP ADVISTORY. WHILE THE CREW WAS C/W THE QRH, THE ENGINE SHUT DOWN UNCOMMANDED. FLIGHT ATTENDANT REPORTED SMOKE - [SDR SIMA981482](https://openairdocs.org/sdr/SIMA981482.md): Detector · malfunctioned · May 28, 1998 · N274AT · Aerosp ATR72212 · Smoke Detection > DFW - FLT 3828 - INBOUND FLT TO DFW FROM TUL, AFT AUX COMPARTMENT SMOKE WARNING ILLUMINATED 'SQUIB' LGIHT FLASHED ON AND THEN EXTINGUISHED BEFORE QRH PROCEDURES COULD BE COMPLETED. FLT ATTENDANT REPORTED THE AFT SMOKE LIGHT ILLUMINATED ON THE FA PANEL ALSO. - [SDR SIMA980722](https://openairdocs.org/sdr/SIMA980722.md): Wire · broken · Mar 13, 1998 · N274AT · Aerosp ATR72212 · Light System Wiring > ONE FLORO PROX LIGHT INOP BY GALLEY DUE TO BROKEN WIRE. ISSUED MEL 33-22 AND RETURNED A/C TO SERVICE. REPAIRED BROKEN WIRE IN ACC WITH STD PRACTICES. PERFORMED OPERATIONAL CHECK SATISFACTORILY AND RETURNED A/C TO SERVICE. (M) - [SDR SIMA973602](https://openairdocs.org/sdr/SIMA973602.md): Fuse · failed · Dec 26, 1997 · N274AT · Aerosp ATR72212 · Emergency Lighting > ORD - FLT 4124 - PAX DOOR ENTRY/EMERGENCY LIGHT INOP. RAI FUSE AND FUSE HOLDER/CAP IN BALLAST. AIRCRAFT RETURNED TO SERVICE. (M) - [SDR SIMA973411](https://openairdocs.org/sdr/SIMA973411.md): Harness · failed · Dec 7, 1997 · N274AT · Aerosp ATR72212 · Landing Gear Position and Warning > DFW - FLT 3653 - AFTER TAKEOFF GEAR UNLOCK LIGHTS DID NOT EXTINGUISH, RECYCLED GEAR THEN IDLE GATE CYCLED CONTINOUSLY IN AND OUT UNTIL LANDING. R/I'D LT WIRE HARNESS 50 GBA DUE TO PIN CORROSION AND PROXIMITY SWITCHES 50GB AND 51GB AS PRECAUTIONARY IAW ATR 72 - [SDR SIMA973161](https://openairdocs.org/sdr/SIMA973161.md): Bulb · failed · Nov 12, 1997 · N274AT · Aerosp ATR72212 · Emergency Lighting > DFW - FLT 3808 - FLOOR TRACK LIGHT AT ROW 6 INOP (ONLY ONE BULB INOP). RAR LIGHT BULB AT ROW 6. EMERGENCY LIGHTING OPS CHECK GOOD IAW JIC 335000. AIRCRAFT RETURNED TO SERVICE. (M) - [SDR SIMA962571](https://openairdocs.org/sdr/SIMA962571.md): Socket · loose wires · Sep 13, 1996 · N274AT · Aerosp ATR72212 · Emergency Lighting > DFW - EMERGENCY LIGHT NEAR SEAT 7AB NOT WORKING. FOUND WIRE SEPARATED FROM SOCKET. RESOLDERED CONNECTIONS ON SOCKET. OPS CHECK GOOD. AIRCRAFT WAS RETURNED TO SERVICE. (M) - [SDR SIMA961581](https://openairdocs.org/sdr/SIMA961581.md): Power Supply · failed · Jun 6, 1996 · N274AT · Aerosp ATR72212 · Emergency Lighting > LAN - FLT 4371 - FORWARD EMERGENCY LIGHTS INOP. RAI POWER SUPPLY 6WL. AIRCRAFT WAS RETURNED TO SERVICE. (M) - [SDR SIMA953332](https://openairdocs.org/sdr/SIMA953332.md): Switching Valve · malfunctioned · Nov 29, 1995 · N274AT · Aerosp ATR72212 · Engine Oil Pressure > ORD - FLT 4256 - PIREP SMOKE/OIL SMELL IN CABIN. REMOVED AND INSPECTED NR 2 ENGINE P3/25 SWITCHING VALVE. OPS CHECKED GOOD. AIRCRAFT RETURNED TO SERVICE. (X) - [SDR SIMA952081](https://openairdocs.org/sdr/SIMA952081.md): O-Ring · nicked · Jul 27, 1995 · N274AT · Aerosp ATR72212 · Engine RPM Indicating System > DFW - FLT 3542 - AFTER LANDING, DURING TAXI, AIRCRAFT CABIN FILLED WITH SMOKE. SMOKE ORIGINATED FROM MIDDLE OF CABIN. NO COCKPIT INDICATION. MAINTENANCE REMOVED AND REPLACED O-RING ON NL PROBE SYSTEM. OPS CHECKED GOOD. AIRCRAFT WAS RETURNED TO SERVICE. (M - [SDR SIMA951222](https://openairdocs.org/sdr/SIMA951222.md): Extract Fan · failed · May 2, 1995 · N274AT · Aerosp ATR72202 · Air Distribution Fan > DFW - FLT 3863 - DURING TAXI OUT 'SMELLED SOMETHING BURNING IN COCKPIT, NO VISUAL OF SMOKE'. RETURNED TO GATE. MTX REPLACED EXTRACTION FAN. AIRCRAFT RETURNED TO SERVICE. (X) ## The whole list in SQL Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS: ```sql SELECT sdr_id, difficulty_date, n_number, aircraft_make, aircraft_model, part_name, part_condition, jasc_code, discrepancy FROM 'https://openairdocs.org/data/latest/faa_service_difficulty_report.parquet' WHERE n_number = 'N274AT' AND deregistration_id = 'N274AT-2003-04-25' ORDER BY difficulty_date DESC ``` This list as a web page: https://openairdocs.org/deregistered/N274AT-2003-04-25/reports --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.